Real-Time Walkthroughs of Serious Synthetic Environments

合成环境的目标（到目前为止还没有完全实现）是为用户提供真实的体验。特别是，这些环境可以用于工程设计和医疗应用的积极协作。本项目针对实时合成环境领域的一些最重要的突出问题：1)开发一个可扩展的系统，以实现超大ecad模型的实时演练，并具有高精度的空间排列渲染。2)开发并行渲染算法，考虑到具有多个图形管道和通用处理器的新兴图形架构。3)开发增量算法，允许对大动态环境进行交互式更新，允许以不现实的方式移动、添加和删除对象。该项目将探索的算法包括可见性剔除、多分辨率方法、模型简化、基于图像的渲染、3-图像翘曲、多通道渲染、模型层次的有效更新、遮挡数据库和细节级生成。这些进步将在现实世界的模型上进行测试，包括一个1300万元素的发电站多边形模型。

The goal - so far not entirely realized - of synthetic environments is toprovide a realistic experience for their users. In particular, theseenvironments can be used for active collaboration on engineering designsand medical applications. This project attacks some of the most importantoutstanding problems in the field of real-time synthetic environments:1) Develop a scalable system to achieve real-time walkthrough of very largeCAD models with high-accuracy rendering of spatial arrangements.2) Develop parallel rendering algorithms that take into account emerginggraphics architectures with multiple graphics pipelines and general-purposeprocessors.3) Develop incremental algorithms to allow interactive updates to largedynamic environments, allowing objects to be moved, added, and removed inrealistic manners.Among the algorithms that the project will explore are visibility culling,multi-resolution methods, model simplification, image-based rendering,3-Dimage warping, multi-pass rendering, and efficient updates for modelhierarchies, occlusion databases, and level-of-detail generation. Theseadvances will be tested on real-world models, including a 13million-element polygonal model of an electric generating station.